Vintage Computer Forum - Handhelds/Portableshttp://www.vcfed.org/forum/
From luggables to palmtops, a place to discuss machines you can take with you.enFri, 22 Feb 2019 17:10:45 GMTvBulletin60http://www.vcfed.org/forum/images/misc/rss.pngVintage Computer Forum - Handhelds/Portableshttp://www.vcfed.org/forum/
Sharp PC-1500/Ahttp://www.vcfed.org/forum/showthread.php?68345-Sharp-PC-1500-A&goto=newpost
Sun, 10 Feb 2019 23:37:24 GMTI have both the Sharp PC-1500 and PC-1500A along with the CE-150 base unit (with 4 new recently bought pens) all in excellent working order.
The...I have both the Sharp PC-1500 and PC-1500A along with the CE-150 base unit (with 4 new recently bought pens) all in excellent working order.
The PC-1500 has CE-155 module and the PC-1500A has a CE-161 module.
Without using the tape cassette option to save and load programs how many programs can be stored just on the pocket computer (how do I do that?) and can programs be also stored on either the CE-155 or the CE-161 at all (again if so how please?).

Thanks
Dennis Tuckerman
Sheffield, UK
]]>Handhelds/PortablesLevisethttp://www.vcfed.org/forum/showthread.php?68345-Sharp-PC-1500-AOsborne RF capacitorhttp://www.vcfed.org/forum/showthread.php?68281-Osborne-RF-capacitor&goto=newpost
Wed, 06 Feb 2019 23:15:27 GMTA little surprise when I cranked up the Osborne. After running about 30 minutes without problem, a sudden pop and lots of acrid smoke coming from...A little surprise when I cranked up the Osborne. After running about 30 minutes without problem, a sudden pop and lots of acrid smoke coming from the areas above the drives. Note the damaged large capacitor:

In Tezza's article on Osborne restoration, he shows the same capacitor. He writes: "Further reading showed these were old "rice paper" capacitors for reducing RF frequencies so that the computer didn't interfere with televisions in the near vicinity. Moreover, these computers can run just fine even when these capacitors are damaged! (Nearby televisions are not so lucky though!)"

]]>Handhelds/PortablesNutmegCThttp://www.vcfed.org/forum/showthread.php?68281-Osborne-RF-capacitorOsborne BOOT ERRORhttp://www.vcfed.org/forum/showthread.php?68268-Osborne-BOOT-ERROR&goto=newpost
Wed, 06 Feb 2019 14:57:42 GMTI went up to Vermont to see a friend's Osborne 1a. We booted it as normal, ran SuperCalc and WordStar, used both A and B drives. CRT was strong; no keyboard problems! He offered it to me, and I took the bait!

Put it in back seat of my car (padded with a blanket), drove home three hours, put it on the kitchen table.

Powered up, CRT strong, inserted a system disk, pressed Return.

No action whatever from either drive. No drive light, no spin.

About ten seconds after pressing Return, display added BOOT ERROR. Every five to ten seconds, another line showing BOOT ERROR.

But the drive lights never blinked red, and the drive never spun.

I figure something jiggled loose when I was coming back home. (Darn Massachusetts pot holes ...).

Are there any suggestions on what to check first? Seems unlikely that *both* drives would fail, when both worked the day before. More like there's no power getting to the drive(s).

Also, the keyboard works fine in my other Osborne (an Osborne 1).

EDIT: neither drive light comes on when powering up the computer (rear power switch).

Thanks.
Tom M.
]]>Handhelds/PortablesNutmegCThttp://www.vcfed.org/forum/showthread.php?68268-Osborne-BOOT-ERRORhttp://www.vcfed.org/forum/showthread.php?68035-Compaq-Portable-(3-5-quot-Floppy)&goto=newpost
Thu, 24 Jan 2019 12:04:19 GMTHi, so I've recently purchased a Compaq Portable, I'd like to be able to use my 3.5" Diskettes with it but i'm having a hard time. I got a Power Splitter Cable ( 5.25" to 2 x 3.5" Floppy Convert from Molex to 2X FDD Leads ) and a new floppy drive ribbon as well as two 3.5", 1.44Mb floppy drivers. I've disconnected the 5.25" Floppy drives and installed the new 3.5 drivers, when booting up the PC i get a diskette error, which i says "Diskette Error, Replace and strike any key when ready".
]]>Handhelds/Portableshu12332http://www.vcfed.org/forum/showthread.php?68035-Compaq-Portable-(3-5-quot-Floppy)Sharp PC-7000 CGAhttp://www.vcfed.org/forum/showthread.php?68022-Sharp-PC-7000-CGA&goto=newpost
Wed, 23 Jan 2019 17:32:13 GMTDoes anyone know of anyplace that may have the optional CGA adapter that was used in the Sharp PC-7000 luggable? I've never seen one on eBay and even Google searches aren't bringing up anything on it.
]]>Handhelds/PortablesVampireSlughttp://www.vcfed.org/forum/showthread.php?68022-Sharp-PC-7000-CGA